302 The Irish Naturalist [.Dec, 



in a new station ; but we found the following alpines in pro- 

 fusion : — Draba i7ica7ia, Silene acaulis, Saxifraga oppositifolia, 

 S. aizoideSy Sedtim Rhodiola, Oxyria reniformis^ Asplenium 

 viride, and Selaginella selaginoides. Specially interesting was 

 Silene acaulis, which in the Ben Bulben district north of Glen- 

 car is apparently restricted to the western extremity or Ben 

 Bulben proper. On the summit of lyUg-na-Gall, where the 

 limestone rises into peculiar rounded knobs, unusual in this 

 formation, the Silene studded the rocks with countless bright 

 green cushions. Further eastward towards Faughrey it 

 ceased abruptly, and, indeed, a vigorous stone-thrower could 

 span its whole area here with a single cast. On the way up 

 from Glencar lake Lotus pilosus and Carex pendula were 

 gathered, and near the head of the lake Carex paludosa, all 

 three in Leitrim and additions to District IX. of Cybele 

 Hibernica. And finally before taking leave of the Ben Bulben 

 district it may be mentioned that we discovered a single plant 

 of the rare Hypopithys Monotropa in a new station on Lough 

 Gill, a hazel copse at Dooney Rock at the opposite side of the 

 lake to Hazelwood, where the plant was found by Miss Wynne 

 some twenty-five years ago. 



Four days in all were spent in our survey of the Ox 

 Mountains. The first day, July 14th, was given up to the 

 ascent of Knockacree, which is easily accessible from Sligo 

 by the Ballina mail-car. On Wednesday, the 15th, we moved 

 our quarters some twenty miles westward from Sligo to Dro- 

 more West on the Ballina mail-car route, where we found an 

 excellent little hotel ; and here the day was spent examining 

 the limestone tracts along the shore. On Thursday, the i6th, 

 we drove from Dromore to Lough Eask}^ and tramped over 

 the mountains north-eastward to the head-waters of the 

 Owenduff, in the glen known as Lugdoon, examining several 

 of the high-lying loughs on the way. On Friday, the 17th, 

 we drove via Lough Basky and the Mass Valley to Lough 

 Talt, explored the shores of the latter lake and part of the 

 surrounding mountain-slopes, and driving on to Tubbercurry 

 station returned by rail to Sligo the same evening. The 

 southern or inland slopes of the range and its western 

 extremity where it crosses the Mayo border we left almost 

 altogether untouched ; and it need hardly be said that our 

 four days of steady work were very far from exhausting the 



